Material:24k yellow gold filled ring. Ring size : US SIZE 9. Ring surface size : 22mm 18mm. Metal : Yellow Gold Filled. Gold filled is an actual layer of gold-pressure bonded to another metal. gold filled jewelry is not the same as gold plated jewelry.It is tarnish-resistant like solid gold and is safe for most people with sensitive skin who can wear solid gold jewelry.Sure,Gold filled is much more gold content.